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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,130,762,863 | 730,639,404 | 730,639,404 |
| 2006 | $2,628,871,852 | 899,200,797 | 899,200,797 |
| 2007 | $3,029,691,327 | 1,020,688,877 | 1,020,688,877 |
| 2008 | $3,098,408,895 | 1,017,260,948 | 1,017,260,948 |
| 2009 | $2,781,942,736 | 1,027,276,246 | 1,027,276,246 |
| 2010 | $4,005,117,713 | 1,265,528,753 | 1,265,528,753 |
| 2011 | $4,112,039,699 | 1,228,114,332 | 1,228,114,332 |
Note: Quantity represents Weight in kilograms
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